A fun realistic multiplayer free-and-open-source first-person-shooter!
Arianne is an engine to develop multiplayer online games like Stendhal
Online War system for IL-2 Sturmovik and Iron Front in ArmA 2
A space shooter game. Run either race or mission, defeat evil enemies.
Online Zombie Game is a medieval-zombie apocalypse rpg game.
Game engine allows you to create own MMORPG
Open source script based on Master XLS
Daily Reading Program
GaPla is a free games Platform written in Java
a PHP based leaderboard software for Battlefield 4
a PHP based leaderboard software for Battlefield Hardline
Free strategy browsergame engine.
a PHP based leaderboard for World of Tanks and World of Warplanes
Modular Gaming Open Source Persistent Browser Based Game Framework
Eve Online Corp Database
Unique web based space strategy game written by Andras Nemeth
Free/Open Source Web Game Panel. Control your game servers easily.
SuperWikia: The Runtime/Realtime Environment for Codesmiths
PHP Games Script includes more than 3600 flash games
War of Respect is an online turn-based MMORPG in 2D-anime style.
Zap Engine